A randomized 25 question test from a pool of 761 questions, good luck!
There are several data access methods used to transmit data. Which of the answers below can be described as a method that the responding device cannot initiate any communication independently?
Digital signals are, either specific or transitory, voltage levels represent states of logic. Which of the signal encoding methods below uses voltage levels to represent logic states?
A DCS can be programmed with function blocks that are needed to execute specific tasks. Which of the answers below describes where the information to define these tasks comes from?
Open communication protocols have several disadvantages. Which of the answers provided below represents one that is not a disadvantage?
Software for programming or configuration is an integral part of any HMI. Which of the interfaces below can be best described as allowing the operators to interact with the GUI?
Providing power to remote sites in a SCADA system has several difficulties associated with it. Which of the answers below would be best defined as one that is power generating 24 hours of the day under the right conditions?
IPv4 has several distinct classifications. Which of the answers below would best describe how those classifications are determined using the address?
Modbus has standard command codes to allow the master to access information from it's slaves. Which of the commands below would be used to write the contents of a series of 10 coils to the slave device?
All the wired network components interact with ISO layers. Which of the answers below reflects the ISO layers that the bridge interacts with?
The OSI model describes how a network should be arranged. Which of the layers below defines the media access method and the message frame structure?
Which of the lengths below relates best to a spur cable with 4 field devices connected?
The quality of a OUT parameter status field has several different classifications. Which of the classifications below can be described as the block does not support a cascade path and the value quality is good?
SCADA control systems are similar to other control system, but the components for a SCADA system vary slightly. Which of the components below would be required to effectively alert operators to a communication system failure?
There are numerous I/O modules that a typical DCS has access to. Which of the modules below is described as one that converts a digital signal to 8 or 16 outputs?
Which of the DeviceNet components below is best described as being used where ingress protection is needed?
A typical HMI has several subsystems attached to it. Which of the subsystems below would be involved in visual indications of data?
IPv4 network classes can also be defined by the IP address they use. Which of the answers corresponds best to the address in row "E"?
Which of the answers below best reflects a guided medium?
Which of the answers below best represents the second bit sent in a RS-232 asynchronous frame?
Model based network devices are at the user level of Ethernet/IP. Information of a capabilities or features of a specified device would be contained in which of the text files below?
Which of the answers below best describes the cable used for the drop lines in the DeviceNet transmission system?
Which of the recommended standards would be best described as having a full duplex transmission system?
Every network interface must have a physical address in an Ethernet network. Which of the network components below contains these addresses?
Which of the answers is not an disadvantage of analog field communication? Choose the best answer from those below.
The limits of a OUT parameter status field has several different classifications. Which of the classifications below can be described as the indication of a parameter within the set range?